55a921c914
When starting HAProxy in master-worker, the master pre-allocate a struct mworker_proc and do a socketpair() before the configuration parsing. If the configuration loading failed, the FD are never closed because they aren't part of listener, they are not even in the fdtab. This patch fixes the issue by cleaning the mworker_proc structure that were not asssigned a process, and closing its FDs. Must be backported as far as 2.0, the srv_drop() only frees the memory and could be dropped since it's done before an exec().